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本文对 ＳＡＲ图像的目标统计特性进行了分析，并对原始 ＳＡＲ图像数据采用小波分解进行了乘性噪声抑制，提出了一种用最小二乘法拟合空间曲面的分维特征提取算法，并应用该方法对ＳＡＲ图像数据进行了实验，得到了理想的效果．
In this paper, the target statistical properties of SAR images are analyzed, and multiplicative noise suppression is performed on the original SAR image data by using wavelet decomposition. An algorithm for extracting fractal dimension features from the surface of the SAR image is proposed by using the least square method. Methods Experiments on SAR image data show the ideal effect.